const arr = [];
console.log(Object.getPrototypeOf(arr) === Array.prototype);
console.log(Object.getPrototypeOf(Array.prototype) === Object.prototype);

const item = { describe() { return `${this.name}, ${this.ml} мл`; } };
const pen = Object.create(item);
pen.name = "Блокнот";
pen.ml = 350;
console.log(pen.describe());

class Order {}
console.log(Object.getPrototypeOf(new Order()) === Order.prototype);

const hot = { temp() { return "горячий"; } };
const tech = {};
Object.setPrototypeOf(tech, hot);
console.log(tech.temp());

console.log(Array.prototype.isPrototypeOf([]), Object.prototype.isPrototypeOf([]));